gnu: Add stringtemplate3. * gnu/packages/java.scm (stringtemplate3): New variable.
gnu: Add antlr2. * gnu/packages/java.scm (antlr2): New variable.
gnu: Add pootle. * gnu/packages/django.scm (pootle): New variable.
gnu: Fix python2-django-allauth. * gnu/packages/python.scm (python-openid)[properties]: Use python2-variant.
gnu: python-pytest-django: Update to 3.1.2. * gnu/packages/django.scm (python-pytest-django, python2-pytest-django): Update to 3.1.2.
gnu: Add python-django-statici18n. * gnu/packages/django.scm (python-django-statici18n, python2-django-statici18n): New variables.
gnu: Add python-django-appconf. * gnu/packages/django.scm (python-django-appconf, python2-django-appconf): New variables.
gnu: Add python-django-sortedm2m. * gnu/packages/django.scm (python-django-sortedm2m, python2-django-sortedm2m): New variables.
gnu: Add python-django-rq. * gnu/packages/django.scm (python-django-rq, python2-django-rq): New variables.
gnu: Add python-django-redis. * gnu/packages/django.scm (python-django-redis, python2-django-redis): New variables.
gnu: Add python-fakeredis. * gnu/packages/python.scm (python-fakeredis, python2-fakeredis): New variables.
gnu: Add python-hiredis. * gnu/packages/python.scm (python-hiredis, python2-hiredis): New variables.
gnu: Add python-django-overextends. * gnu/packages/django.scm (python-django-overextends, python2-django-overextends): New variables.
gnu: Add python-django-contrib-comments. * gnu/packages/django.scm (python-django-contrib-comments, python2-django-contrib-comments): New variables.
gnu: Add python-django-contact-form. * gnu/packages/django.scm (python-django-contact-form, python2-django-contact-form): New variables.
gnu: Add python-django-bulk-update. * gnu/packages/django.scm (python-django-bulk-update, python2-django-bulk-update): New variables.
gnu: Add python-dj-database-url. * gnu/packages/django.scm (python-dj-database-url, python2-dj-database-url): New variables.
gnu: Add python-django-jsonfield. * gnu/packages/django.scm (python-django-jsonfield, python2-django-jsonfield): New variables.
gnu: Add python-django-assets. * gnu/packages/django.scm (python-django-assets, python2-django-assets): New variables.
gnu: Add python-mysqlclient. * gnu/packages/python.scm (python-mysqlclient, python2-mysqlclient): New variables.